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RMO comparison
Linked comparison
Metrology area, Sub-field Chemistry and Biology, Organics
Description Measurement of PAHs in protein matrix
Time of measurements 2022 - 2024
Status Report in progress, draft A

Study Protocol EURAMET.QM-S5, July 2022

Measurand Mass fraction of benz(a)anthracene (BaA) in a high protein matrix,
Mass fraction of benzo(a)pyrene (BaP) in a high protein matrix,
Mass fraction of benzo(b)fluoranthene (BbF) in a high protein matrix,
mass fraction of chrysene (Chr) in a high protein matrix.

0.1 µg/kg to 50 µg/kg
Parameters see protocol
Transfer device Sample in form of a powder
Comparison type Supplementary Comparison
Consultative Committee CCQM (Consultative Committee for Amount of Substance)
Conducted by EURAMET (European Association of National Metrology Institutes)
RMO Internal Identifier EURAMET.QM-S15
Comments Polycyclic aromatic hydrocarbons (PAH) are a class of chemicals, consisting of hydrocarbons with at least two connected aromatic ring systems. They may be produced during the processing of foodstuffs, such as smoking. They may, however, also find their way into foodstuffs unintentionally, e.g. from mineral oils. Because they may have negative effects on health – they are associated with cancer and other diseases – threshold values have been set for PAHs. Accurate analyses regarding these chemicals are therefore called for.
There were other comparisons previously conducted for the determination of PAHs. CCQM conducted key comparisons with final reports published in 2018 (CCQM-K95.1: Polycyclic Aromatic Hydrocarbons (PAHs) in Tea) and 2020 (CCQM-K146: Benzo[a]pyrene in Olive Oil). So far, however, no comparison of PAHs in a protein-rich matrix has been carried out.
In this comparison the target PAHs are benz(a)anthracene (BaA), benzo(a)pyrene (BaP), benzo(b)fluoranthene (BbF), and chrysene (Chr) in a protein-rich matrix.
Successful participation in this supplementary comparison will demonstrate the measurement capabilities in determining mass fractions of low polarity organic compounds with molecular masses of about 150 - 500 g/mol in the mass fraction range from 0.1 µg/kg to 100 µg/kg (as received) in a protein-rich matrix.
Pilot institute METAS
Federal Institute of Metrology
Contact person Gisela Umbricht

First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory

Federal Institute of Metrology, Switzerland, EURAMET


Bundesamt für Verbraucherschutz und Lebensmittelsicherheit, Germany, EURAMET


Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET


Institut za vode d.o.o. Bijeljina, Bosnia and Herzegovina, EURAMET


MIRS/Science and Research Centre Koper/ Laboratory of the Institute for Oliveculture, Slovenia, EURAMET


TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET

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